Diffuse knapweed is an invasive plant species native to Europe and Asia. It typically grows between 1 to 3 feet tall and has distinctive, spiny flower heads that are usually white or purple. The plant thrives in disturbed areas, such as roadsides and pastures, and can outcompete native vegetation, leading to reduced biodiversity. This species reproduces quickly through seeds, which can be spread by wind, water, and animals. Management strategies often include mechanical removal and herbicide application to control its spread. Effective management is crucial to protect local ecosystems and agricultural lands from its negative impacts.